Monitoring Pneumatic Leakage "C._Leak - Siemens 6DR50 Series Operating Instructions Manual

9.4.3.3

Monitoring pneumatic leakage "C._LEAK"

C. LEAK - Monitoring pneumatic leakage
Note
Accuracy of results
Please note that this monitoring delivers unambiguous results only in the case of single-
acting, spring-loaded actuators.
Requirement:
Possible settings:
Purpose:
Factory setting:
C1.LIMIT - Limit for leakage indicator
Adjustment range:
Purpose:
SIPART PS2 with and without HART
Operating Instructions, 09/2014, A5E00074631-12
The "'52.XDIAG' Activating for extended diagnostics (Page 174)"
parameter is set to "On".
• OFF
• On
Use this parameter to detect leakages in the actuator or in the pipe
installation. The associated sub-parameters are displayed when
you activate the parameter with "On".
The current value is displayed in "Diagnostics parameter
'16.ONLK' Pneumatic leakage (Page 213)". The positioner triggers
an error message if the current value exceeds one of the three
configurable limit thresholds.
Sub-parameters are described below.
OFF
0.1 ... 100.0
Use this sub-parameter to set the limit of the leakage indicator in
percent. Set the limit in a range from "0.1" to "100.0". If no leakage
exists, monitoring of the pneumatic leakage is automatically cali-
brated in such a way during the initialization (see section
"Commissioning (Page 113)") that the leakage indicator remains
below the value 30. If a value above 30 is displayed, this means
that a leakage exists. "30.0" is therefore an advisable setting for
the parameter. After a certain time this limit can be varied slightly
depending on the application.
Parameterizing/addressing
9.4 Description of parameters
183